Backup Lamps Inoperative. Chevrolet PJJ 2000

For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was A Diagnostic System Check-Lighting performed? | -- | Go to Step 2 | Go to A Diagnostic System Check-Lighting
2 | Check 10A TURN B/U fuse for an open. Is fuse open? | -- | Go to Step 3 | Go to Step 8
3 | Test the Fuse Ouput-Ignition for continuity to ground. Is ground present? | -- | Go to Step 4 | Go to Step 5
4 | Repair short to ground in the Fuse Ouput-Ignition. Refer to Wiring Repairs in Wiring Is repair complete? | -- | System OK | --
5 | Test for continuity to ground at terminal F of Back up switch (terminal A on manual transmissions). Refer to Circuit Testing in Wiring Systems Is ground present? | -- | Go to Step 6 | Go to Step 7
6 | Replace Back up switch. Refer to Backup Lamp Switch Replacement. Is repair complete? | -- | System OK | --
7 | Repair short to ground in CKT 24. Refer to Wiring Repairs in Wiring Systems. | -- | System OK | --

8

1. Disconnect the backup lamps switch connector (manual) or the park/neutral position switch connector (automatic).
2. Turn the ignition switch to the ON position.
3. Connect a test lamp between terminal B of the back-up lamps switch or park/neutral position switch harness connector and ground.

Does the test lamp light?

--

Go to Step 9

Go to Step 10

9 | Connect the test lamp between terminal A and terminal B of the back-up lamps switch harness connector or between connector C2 terminal B and terminal F of the park/neutral position switch. (Terminal A of manual transmission backup switch) Does the test lamp light? | -- | Go to Step 11 | Go to Step 12
10 | Repair the open in CKT 539 between the fuse block and the back-up lamps switch or the park/neutral position switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | System OK | --

11

1. Verify the adjustment of the back-up lamps switch or the park/neutral position switch.
2. If the switch adjustment is acceptable, replace the switch.

Is the repair complete?

--

System OK

--

12 | Repair the open in CKT 24. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | System OK | --